63172641 has 8 divisors (see below), whose sum is σ = 96263104. Its totient is φ = 36098640.

The previous prime is 63172639. The next prime is 63172649. The reversal of 63172641 is 14627136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63172641 - 2¹ = 63172639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63172599 and 63172608.

It is not an unprimeable number, because it can be changed into a prime (63172649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1504090 + ... + 1504131.

It is an arithmetic number, because the mean of its divisors is an integer number (12032888).

Almost surely, 2^63172641 is an apocalyptic number.

It is an amenable number.

63172641 is a deficient number, since it is larger than the sum of its proper divisors (33090463).

63172641 is a wasteful number, since it uses less digits than its factorization.

63172641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008231.

The product of its digits is 6048, while the sum is 30.

The square root of 63172641 is about 7948.1218536205. The cubic root of 63172641 is about 398.2688540594.

Adding to 63172641 its reverse (14627136), we get a palindrome (77799777).

The spelling of 63172641 in words is "sixty-three million, one hundred seventy-two thousand, six hundred forty-one".